DE1935282C - Machine for making casting molds - Google Patents

Description

The invention relates to a device for dimensioning the invention,

and take over as well as for feeding and fastening A b b. 2 is a side view of the same machine,

gen of molding boxes for a machine to manufacture 50 A b b. 3 the holding device for a scaled molding of casting molds for batch casting with a large number of.

articulated vertically revolving, of two star wheels The machine shown in the drawing is

The driven endless chain, each of which has a machined chain link made of profile iron a carrier for a molding box frame, which essentially consists of a frame 1, det, as well as with an above Hes upper horizontal 55 four corner posts 2 and two double T-beams 3 zuten Chain strand arranged Sandbcschickungs- is composed. each of which on two and compression device. most 2 is attached.

In the case of stack casting, a larger number is over- On each carrier 3 sit two bearing blocks 4. Each

molding boxes stacked on top of one another at the same time, two coaxial bearing blocks 4 carry a shaft 5 . Castings 60 are particularly suitable for this. A four-armed star wheel 6 sits on each shaft 5. with a flat base, such as B. Piston rings, Both star wheels are used to drive an endless chain made of plat- so that the upper smooth sand surface of a molded wire 8 to 17 can form the lower limit of the casting mold of the illustrated example ten plate-shaped chain links protruding frame. Everyone has finished. Every two consecutive molding boxes are connected to one another and have a continuous pouring channel, 65 articulated by axles 18, which branches off into the one channel to the mold cavity. Can insert recesses of the star wheels and the continuous channels of all molding boxes form rollers 7 at their free ends. One sprue channel common to all shapes on each. Plate 8 to 17 is attached to a model plate 20, such as

this is shown by the chain link 8. The roles 7 support each other alternately on rails 19 and 21 which are attached to arms 22. These arms are on again fastened to the supports 3 or to the post 23, which sit on the supports 3.

A sand funnel 24 is attached to the post 23 above the chain. This funnel has two sieves 25 and 26, between the two is the funnel opening 27. At 28 is a scraper for the Called sand.

A cylinder 30 with a plunger 31 is attached to the post 23 with arms 29, the piston rod of which 32 carries a pressure plate 33 at its lower end.

On the foundation of the machine frame, two lifting cylinders 34, 35 are arranged, their pistons are denoted by 36. Each piston carries a lifting table 38 which is used to lift a carriage 39, 40 serves, which can be pushed on rails 37 over a plate 38. Wagon 40 carries stuffed ones Molding boxes 41. The carriage 39 is empty molding boxes 42. Jecier molding box consists, as A b b. 3 shows off a flat iron frame 43. On two opposite sides of this frame are angle irons 44 welded on. In A b b. 3 shows a molding box filled with sand. The sand filling is denoted by 45. To hold the filled molding box in place, two double-armed levers 46 are used, which are provided with zaps 47 are pivotably mounted in each plate. A spring acts on the upper lever arm 48 of each lever 49 a, which is supported on a nose 50 of the plate. The other lever arm 51 carries a round iron 52 is pressed by the spring 49 from below against the angle iron 44.

The A b b. 3 further shows two cylinders 53 with piston 54 and piston rod 55. These cylinders are as Fig. 1 shows, on the machine frame in the middle plane of the cylinder 35 is arranged.

1 sheet of drawings

Claims (4)

1 2 The batch casting allows the simultaneous casting claims: Ben a larger number of castings. From the German patent specification 5.i5 7/8 is ne- 1. Device for accepting and accepting a molding machine is already known which has a multitude of colors for feeding and securing molding boxes and a chain driven by two star wheels stL-n for a machine for the production of castings, of which each chain link has a carrier for one Forms for batch casting with a multi-part molding box, one above the upper vvaagcvertikal revolving sand charging driven by two slern wheels on the right chain strand endless chain, of which each Ket- kunüs- and compacting device and two in the ten link a carrier for a molding box bil- io circumferential direction of the chain lying one behind the other deL as well as with one above the upper balance stations for "putting on the empty and taking off." Sandbath arranged on the right chain strand manufacture molding boxes. With this machine will be Sehickungs- and compacting device, the molding boxes placed on the upper edge of the chain characterized by two under the bottom and also taken down so that when in use Ren chain strand behind one another in the direction of movement of the chain in such a machine for the production of molds other arranged lifting tables (38). of those for batch casting, putting on and taking off the Foreine is required for acceptance and transfer by hand in batches. would take the finished molding boxes (41) from the The invention aims to form a Chain links (17) and the second to the stack molding machine for stack casting, in which a placement There is no need to feed or attach the individual 20 and remove the mold frames by hand. lu. in molding boxes (42) on the chain links (9) For this purpose, according to the invention, the and identified by a device described in several ways in each chain link ren.agered double-armed against spring force measured by two under the lower chain strand in ketchan actuatable levers (46) for dispensing lifting tides arranged one behind the other finished box (41) to the stack and to see 25, one of which is for acceptance and stacking a single empty box (42). wise takeover of the finished molding boxes from the 2. Machine according to claim 1, characterized GE chain links and the second to the stack-wise zucks that the stacks of empty and the lead and attachment of the individual empty molding boxes (41, 42) of carriages (39, 40) is used most of the chain links , and through sii.d carried in each, which run on rails (37) and 30 chain links can be pushed to several double-armed bearings mounted over the lifting tables (38) spring force mechanically actuated levers for the transfer of the finished box to the stack and to the 3. Machine according to Ansprvrhl oder2, thereby setting up a single empty box. Preferably characterized in that the stacks of the empty and the finished sides of each molding box (41, 42) are carried by carriages on two opposite sides of two angled molding boxes which are arranged on slides (44) with the double arrows - You can walk and slide over the lifting tables using levers (45) to fasten the boxes. After a further suggestion of the Er- (41, 42) cooperate. finding are on two opposite sides each 4. Machine according to claim 3, characterized in that the molding box is arranged with two angle irons indicates that to release the molding boxes 40, the double-armed levers for attaching the Kädie Lever (45) actuating, cooperate most on the machine frame. To release the molding boxes arranged hydraulic cylinder (53) are used. serve the lever actuating, on the machine frame arranged hydraulic cylinders. An embodiment of the invention is in the fol- 45 quarters described with reference to the drawing; in this show Fig. 1 is a front view of a machine